实时计算 Flink版sql维表join 的相关内容

阿里云文档 2024-10-21

维表JOIN语句

对于每条流式数据，可以关联一个外部维表数据源，为实时计算Flink版提供数据关联查询。

问答 2024-02-01 来自：开发者社区

Flink CDC里flink sql 维表 jdbc lookup join，如何更新结果数据呢？

Flink CDC里flink sql 维表 jdbc lookup join，当左表数据不更新时，维表变动，如何更新结果数据呢？

问答 2024-01-31 来自：开发者社区

请教个问题，flink sql 维表 jdbc lookup join，如何更新结果数据呢？

请教个问题，flink sql 维表 jdbc lookup join，当左表数据不更新时，维表变动，如何更新结果数据呢？

阿里云文档 2023-09-03

如何通过Flink访问HBase增强版并创建结果表和维表_云数据库HBase版(Hbase)

您可以使用社区版Flink或阿里云实时计算版Flink访问HBase增强版集群。本文介绍同时适用于阿里云实时计算版Flink和社区版Flink访问HBase增强版集群的方法。

问答 2023-05-11 来自：开发者社区

flink sql维表join必须等值连接吗

select create_time ....... from log vdl left join dim_ip_local_range FOR SYSTEM_TIME AS OF vdl.create_time as dilr on int_ip >= dilr.start_num and int_ip 我想通过这种范围连接，批处理模式是可以的，...

问答 2023-04-10 来自：开发者社区

请问 flink sql CDC 如何实现维表延迟join？

问答 2021-12-08 来自：开发者社区

想问一下Flink SQL 1.9版本支持维表join吗

想问一下，目前flink sql 1.9 可以通过sql的方式 join 关联外部数据源吗？比如说通过sql DDL 定义一个Hbase的维表数据源,然后用sql join关联上。 CREATETABLEMyUserTable( hbase_rowkey_namerowkey_type, hbase_column_family_name1ROW, hbase_column_famil...

问答 2021-12-05 来自：开发者社区

flink sql使用维表关联时报Temporal table join 出现问题

本人使用的flink 版本为1.10.0，planner为BlinkPlanner，用LEFT JOIN FOR SYSTEM_TIME AS OF 语法关联维表： select TUMBLE_END(l.dt, INTERVAL '30' SECOND) as index_time, l.extra_info['cityCode'] as city_code, v.vehicle_level ....

问答 2021-12-02 来自：开发者社区

flink sql维表延迟join如何实现？

延迟join主要是为了解决维表数据后于事实表数据到达问题。java代码可以实现，那flink sql这块能否通过sql hint解决呢？有没有示例？*来自志愿者整理的flink邮件归档

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更新时间 2024-02-02 11:30:28

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

产品控制台

产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优